Nature of Operations and Summary of Significant Accounting Policies - Net Income Per Share and Fair Value (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2021
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)			301,000
Numerator:
Net income	$ 428,334	$ 322,962	$ 34,342
Denominator:
Basic earnings per share weighted average shares (in shares)	40,314,000	40,262,000	43,940,000
Dilution due to employee equity awards and warrants	1,089,000	1,285,000	659,000
Diluted earnings per share weighted average shares	41,403,000	41,547,000	44,599,000
Basic earnings per share (in dollars per share)	$ 10.62	$ 8.02	$ 0.78
Diluted earnings per share (in dollars per share)	$ 10.35	$ 7.77	$ 0.77
Performance Share Units (PSUs)
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)	79,000	209,000	334,000	334,000
Warrants PSP1
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)			286,000
Employee Stock Option [Member]
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)			15,000